Cotton-gin.



J. L. MOGINN, JR. GOTTON GIN.

urmomrox mum mm. 24,1908.

947,214, Patented Jan; 18,1910.

JAMES I1. MCGINN, JR., 0]? COLUMBUS, GEORGIA.

COTTON-GIN.

Specification of Letters Patent.

Patented J an. 18, 1910..

Application filed December 24, 1908. Serial No. 469,053.

To all whom it may concern:

Be it known that I, JAMES L. MoGINN, J r., a citizen of the UnitedStates, residing at Columbus, in the county of Muscogee and State ofGeorgia, have invented new and useful Improvements in Cotton-Grins, ofwhich the following is a specification.

This invention relates to cotton gins and particularly to theapplication of an improved form of mote board or plate.

The primary object of the invention is to provide a strong and durableform of mote board or plate having a simple and cheap construction andwhich may be adjustably applied to the bottom edge of the lint fine toreinforce and strengthen the latter and keep it straight or in properalinement with relation to the gin saws, the mote board or plate beingreadily adjustable toward or from the gin saws.

Vith this and other objects and advantages in view, the inventionconsists in the construction and arrangement of the several parts whichwill be more fully hereinafter specified.

In the drawing: Figure 1 is a section through a portion of a gin showingthe improved mote board or plate applied thereto, the latter being alsoshown in cross section. Fig. 2 is a detail perspective view of theimproved mote board or plate.

The mote board embodying the features of the invention is shown appliedto a' gin provided with an air trunk or conduit in operative associationwith blast fans, not shown, and having an air delivery outlet or spoutadjacent to the saws to liberate the lint cotton from the latter anddrive it into the lint flue, but it will be understood that the moteboard may be used with a gin embodying a brush cylinder cooperating withthe gin saws in a manner which will be read ily understood by thoseskilled in the art.

In the drawing the numeral 1 designates the air trunk or conduit, 2 theoutlet, 3 the gin saws, and 4 the lint flue, the latter being supportedin operative relation to the gin saws as shown as well as to theextremity of the outlet 2 and whereby the lint cotton may be blown fromthe saws downwardly into the lint flue. The bottom of the lint flue hasthe extremity thereof adjacent to the saws slotted as at 5 for obviousreasons, and the edge wall or bottom edge 6 of this flue has theimproved mote board or plate 7 adjustably fitted thereover.

The mote board or plate 7 is constructed of suitable sheet metal anddoubled upon itself as at 8 about midway of its width to form a seat orrecess 9 for the reception of the bottom edge 6 of the lint flue 4, thebent portion 8 terminating in a right-angular flange 10 which isstrengthened by rebending the metal to increase the thickness of thesame, and therethrough near opposite ends screw-threaded openings 11 areformed. The mote board or plate as a whole is given a transversecurvature corresponding to the contour of the bottom portion or wall ofthe lint flue over which it is fitted to follow out as nearly aspracticable the curve of the said bottom portion or wall of the lintflue to avoid obstruction of the movement of the lint cotton over themote board into the flue. The one edge 12 of the mote board,'which bearsagainst the inner surface of the lower portion or wall of the lint flueis formed as a downwardly curved lip so as to set up a snug engagementthereof with the said wall of the lint flue, the mote board havingsuliicient inherent resiliency to maintain a close engagement of theedge or lip 12 with the lower portion or wall of the lint flue when theboard is applied over the edge 6.

The lint flue has a depending rib or flange 13 adjacent to the edge 6 tocodperate with the flange or rib 10 of the mote board 7 and through thetwo flanges l0 and 1-3 and engaging the openings 11 adjusting bolts 14:are inserted and of such length as to admit of a considerable movementof the mote board to and from the saws 3. The adjusting bolts 14 areprovided with suitable nuts for holding and setting the bolts and moteboard in adjusted position, said nuts being applied as at 1.5, see Fig.1.

In applying the mote board it is inserted in the slot 5 and the edge 6at the bottom of the flue 4 is caused to enter the seat or recess 9, thedoubled or bent edge of the mote board being nearest to the saws andmaintaining a straight edge in relation to the latter. As aboveindicated, the mote board may be adjusted toward and from the sawsthrough the medium of the bolts 14, and when the edge 6 is covered bythe part of the mote board engaging the same it is obvious that saidedge is reinforced or strengthened and bending or buckling thereof willbe prevented. The mote board not only serves the important function of adevice of this character, but also renders the portion of the lint fluewhich it engages stronger and more durable with material advantages inthe economical operation of the gin.

It will be observed that the upper portion of the mote board or platerests closely against the bottom of the flue 4 and the lip 12 at thelower side edge of the mote plate, or at the side edge opposite thatnearest the saw closely bearing against the upper surface of the part ofthe bottom of the flue 4 over which it extends prevents the aggrega tionof dust or particles of cotton between the bottom of the lint flue andthe part of the mote board or plate extending over said bottom.Furthermore, by disposing the flange or rib 10 at the under side of themote board or plate and bending it at an angle to constitute a terminalparallel with the flange or rib 13 of the bottom of the lint flue t aconvenient and practical adjusting cooperation of the two flanges orribs 10 and 13 will ensue, and as hereinbefore noted the adjusting bolts14 will be long enough to permit quite an extensive adjustment of themote board or plate and the adjustment of the said mote board or platemay be effected without separating the adjusting bolts from the flangesor ribs 10 and 13 and in view of which operation the mote board or platewill be caused to slide over the bottom of the lint flue in oppositedirections in accordance with the right or left rotation of theadjusting bolts. The improved mote board is also of such constructionthat it can be readily applied to the lint flues of gins now in use at aminimum expense and to accommodate various applications, changes in theproportions and dimensions may be adopted with- R out modifying theessential features of construction constituting the invention.

What is claimed is:

The combination with gin saws having means cooperating therewith fordisengaging lint cotton therefrom, of a lint flue in operativeassociation with the saws and having a depending rib and a mote boarddoubled upon itself to form a seat to receive the lower edge of the lintflue, the doubledover portion of the board terminating in a dependingrib which adjustably cooperates with the rib of the lint flue, the moteboard also having a lip at its lower edge within the lint flue whichsnugly engages the latter, and adjusting means engaging the two ribs andoperative to move the mote board on the lower edge of the lint flue.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JAMES L. MCGINN, Jn. \Vitnesses V. V. MCKENZIE, Jas. L. MGGINN.

